2.
Open the drain cock or remove the drain plug (1)
on the engine. Open the drain cock or remove the
drain plug on the radiator.
Allow the coolant to drain.
NOTICE
Dispose of used engine coolant or recycle. Various
methods have been proposed to reclaim used coolant
for reuse in engine cooling systems. The full distilla-
tion procedure is the only method acceptable by Per-
kins to reclaim the coolant.
For information regarding the disposal and the
recycling of used coolant, consult your Perkins
dealer or your Perkins distributor.
Flush
1.
Flush the cooling system with clean water in order
to remove any debris.
2.
Close the drain cock or install the drain plug in the
engine. Close the drain cock or install the drain
plug on the radiator.
NOTICE
Do not fill the cooling system faster than 5 L
(1.3 US gal) per minute to avoid air locks.
Cooling system air locks may result in engine
damage.
3.
Fill the cooling system with clean water. Install the
cooling system filler cap.
4.
Start and run the engine at low idle until the
temperature reaches 49 to 66 °C (120 to 150 °F).
5.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in order
to relieve any pressure. Remove the cooling
system filler cap. Open the drain cock or remove
the drain plug on the engine. Open the drain cock
or remove the drain plug on the radiator. Allow the
water to drain. Flush the cooling system with clean
water.
Fill
1.
Close the drain cock or install the drain plug on the
engine. Close the drain cock or install the drain
plug on the radiator.
NOTICE
Do not fill the cooling system faster than 5 L
(1.3 US gal) per minute to avoid air locks.
Cooling system air locks may result in engine
damage.
2.
Fill the cooling system with ELC. Refer to the
Operation and Maintenance Manual, “Fluid
Recommendations” topic (Maintenance Section)
for more information on cooling system
specifications. Do not install the cooling system
filler cap.
3.
Start and operate the engine at low idle. Increase
the engine rpm to high idle. Operate the engine at
high idle for 1 minute in order to purge the air from
the cavities of the engine block. Stop the engine.
4.
Check the coolant level. Maintain the coolant level
within 13 mm (0.5 inch) below the bottom of the
pipe for filling. Maintain the coolant level in the
expansion bottle (if equipped) at the correct level.
5.
Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. If the
gasket that is on the cooling system filler cap is
damaged, discard the old cooling system filler cap
and install a new cooling system filler cap. If the
gasket that is on the cooling system filler cap is not
damaged, use a suitable pressurizing pump in
order to pressure test the cooling system filler cap.
The correct pressure for the cooling system filler
cap is stamped on the face of the cooling system
filler cap. If the cooling system filler cap does not
retain the correct pressure, install a new cooling
system filler cap.
6.
Start the engine. Inspect the cooling system for
leaks and for correct operating temperature.
i05149389
Coolant Level - Check
Engines With a Coolant Recovery
Tank
Note:
The cooling system may not have been
provided by Perkins . The procedure that follows is
for typical cooling systems. Refer to the OEM
information for the correct procedures.
Check the coolant level when the engine is stopped
and cool.
80
SEBU8609
Maintenance Recommendations
Coolant Level - Check